[openwrt/openwrt] kernel: bump 5.15 to 5.15.88

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/0a15bb65105f51af1505223ace2a4dfabc2f6f0c

commit 0a15bb65105f51af1505223ace2a4dfabc2f6f0c
Author: John Audia <therealgraysky at proton.me>
AuthorDate: Sat Jan 14 06:41:47 2023 -0500

    kernel: bump 5.15 to 5.15.88
    
    No patches affected by kernel bump/checksum automatically updated
    
    Build system: x86_64
    Build-tested: bcm2711/RPi4B, filogic/xiaomi_redmi-router-ax6000-ubootmod
    Run-tested: bcm2711/RPi4B, filogic/xiaomi_redmi-router-ax6000-ubootmod
    
    Signed-off-by: John Audia <therealgraysky at proton.me>
---
 include/kernel-5.15 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/kernel-5.15 b/include/kernel-5.15
index 72edb4c5c9..f31669f8c0 100644
--- a/include/kernel-5.15
+++ b/include/kernel-5.15
@@ -1,2 +1,2 @@
-LINUX_VERSION-5.15 = .87
-LINUX_KERNEL_HASH-5.15.87 = e7359bd2935b54fe8bb821cf748591c36a95bed019e752d3e4d5803d9da1ccb4
+LINUX_VERSION-5.15 = .88
+LINUX_KERNEL_HASH-5.15.88 = 417539fdd96a3af97ef9ad2b51ca13967cb922f53970563b60290b935a81a181